od.nih.gov

Valid Email Server
Domain Lookup › od.nih.gov

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
od.nih.gov
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 00:58:38 UTC · ↺ Refresh

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MX Hostnames

  • nihcesxway4.hub.nih.gov
  • nihcesxwayst04.hub.nih.gov
  • nihcesxwayst03.hub.nih.gov
  • nihcesxway5.hub.nih.gov
  • nihcesxwayst06.hub.nih.gov
  • nihcesxway3.hub.nih.gov
  • nihcesxwayst05.hub.nih.gov
  • nihcesxway6.hub.nih.gov

MX Priorities

  • nihcesxwayst04.hub.nih.gov: 10
  • nihcesxwayst03.hub.nih.gov: 10
  • nihcesxway5.hub.nih.gov: 10
  • nihcesxway4.hub.nih.gov: 10
  • nihcesxway3.hub.nih.gov: 10
  • nihcesxway6.hub.nih.gov: 10
  • nihcesxwayst06.hub.nih.gov: 10
  • nihcesxwayst05.hub.nih.gov: 10

A / AAAA Records

  • 137.187.15.121

Mail Server IPs

  • 165.112.13.42 ↩ nihcesxwayst04.hub.nih.gov
  • 2607:f220:402:1a01::a570:d2a ↩ nihcesxwayst04.hub.nih.gov
  • 165.112.13.34 ↩ nihcesxwayst03.hub.nih.gov
  • 2607:f220:402:1a01::a570:d22 ↩ nihcesxwayst03.hub.nih.gov
  • 128.231.90.120 ↩ nihcesxway5.hub.nih.gov
  • 2607:f220:404:8104::80e7:5a78 ↩ nihcesxway5.hub.nih.gov
  • 128.231.90.119 ↩ nihcesxway4.hub.nih.gov
  • 2607:f220:404:8104::80e7:5a77 ↩ nihcesxway4.hub.nih.gov
  • 128.231.90.125 ↩ nihcesxway3.hub.nih.gov
  • 2607:f220:404:8104::80e7:5a7d ↩ nihcesxway3.hub.nih.gov

SOA Record

Raw SOA nihblox6.nih.gov hostmaster.nih.gov 2934171 10800 1080 2592000 900
Primary NS (mname)
nihblox6.nih.gov
Admin Email (rname)
hostmaster@nih.gov
Serial
2934171
Refresh
10800s
Retry
1080s
Expire
2592000s
Minimum TTL
900s

Nameservers (NS)

ns2.nih.gov
ns3.nih.gov
ns.nih.gov

SPF Record

✓ Soft Fail (~all)
v=spf1 include:nih.gov include:servers.mcsv.net include:spf.dynect.net include:mail.ideascalegov.com include:mail.zendesk.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • SPFv=spf1 include:nih.gov include:servers.mcsv.net include:spf.dynect.net include:mail.ideascalegov.com include:mail.zendesk.com ~all
  • bb31l3mdv616h80xh4pzjp465k3lygt7
  • google-site-verification=8Q71Ysn10taVVRMmPVhcg-ZmLO18zLMn0XVJ6Y5doy0
  • jamf-site-verification=AwQuHpiIApm1z-7YFLRE7w
  • 7nC03k7QJdJI6orj3MbqDq7rLCyv4dLS4bo+9Z969Wr=
  • ETcuboJceAAvWr3PlCY7Hhl28n8aeleYMofJf+J3YJUDbcZYKeM9Tj8tnFJxMIUnoNPmNY6xxdqnl6RtBWwjLw==
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